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Vega is a world rich in minerals, metallic ores, and fresh water, and has three landmasses: North Nanturo, South Nanturo and Forsair. By the time it joined the Draconis Combine, Vega was home to a series of industrial concerns producing everything from medical equipment to armored vehicle components. These businesses were required to follow strict environmental protection laws to support the terraforming process. The success of these terraforming efforts allowed the Vegans to import horses and camels from Terra; These animals thrived in the environment.[2]

After joining the Combine, Vega quickly became important to the Draconis economy. As a signifier of this significance, it was made the capital world of the Vega Prefecture. The Draconis Combine Mustered Soldiery established a garrison on the planet because it had been attacked several times by the Lyran Commonwealth.[2]

After a bloody two-pronged invasion into the Lyran Commonwealth in 2407, the Archon of the Commonwealth, Alistair Marsden, intuited that not only was another Combine invasion of the Commonwealth almost certain, but that stockpiles for the invasion were almost certainly being assembled on Vega. Archon Marsden gathered the reserves he had left into a strike force and in early 2408 he struck at Vega. Caught unprepared and with only a scattered, piecemeal defense, the DCMS was unable to offer much resistance and the Lyran forces destroyed huge quantities of supplies, ammunition and equipment in what was the first large-scale victory for the Commonwealth. So much materiel was destroyed that the Combine was forced to postpone its invasion plans.[6]

During the darkest days of the Second Succession War the Lyran Commonwealth was losing worlds steadily to both the Draconis Combine and the Free Worlds League, and the Lyran Commonwealth Armed Forces neared the point of collapse, particularly in the 2860s and 2870s. As the 2870s drew to a close the LCAF regained some of its confidence and launched a number of attempts to recapture some of the worlds that had been lost to the Commonwealth's neighbors, but still couldn't keep pace with the rate at which worlds were being captured. The Combine continued to push towards the important world of Skye, and by 2884 Vega had been captured along with the worlds of Balkan, Kessel, Port Moseby, Ryde and Skondia and the DCMS was on the verge of being able to threaten Skye directly.[20]

The Fourteenth Legion of Vega faced the Third Davion Guards and Third Lyran Guards. The two FedCom units held the Legion in place, and once the Fifth Amphigean LAG evacuated the mercenary units turned to face the Legion. The Legion of Vega was trapped between two fronts, and rather than be destroyed they also evacuated the world. The Lyran Commonwealth Armed Forces established a forward command area on Vega, and sent the Third Lyran Guards to their next target.[55] While participating in planning sessions, many of the LCAF field commanders were killed by a DEST-planted bomb.[56] This threw the defenders into chaos, and the arrival of the 2nd Legion of Vega, 14th Legion of Vega, and 2nd Dieron Regulars made things worse. The LCAF forces were scattered across the planet, and when the Grave Walkers and Snord's Irregulars were sent off-world[57], the DCMS forces turned their full attention to the Third Davion Guards. Faced with almost certain defeat, the Third Guards evacuated the world.[58]

Vega was attacked by the Word of Blake in mid-May 3069 in a two-week campaign that saw the Word of Blake use both their own forces and hired mercenaries to conquer the planet by conventional means.[40] In late August 3075[41]Xi Galaxy[59] of Clan Ghost Bear arrived and launched a campaign to liberate the planet, ignoring all hails from Draconis Combine forces.[41][42]

After the Jihad, Vega was one world ceded to the Republic of the Sphere. It was made the capital world of Prefecture I. In 3131, Draconis Combine agents triggered a massive economic depression on the world by causing a catastrophic bank collapse. Over the next year, the local government worked to restart the economy, but the HPG blackout, the death of the planetary governor, and the destruction of the government complex by a militia fighter packed with explosives, derailed these plans.[60] On the 6th of March 3133 the Dragon's Fury raided Vega[61] but Katana Tormark's effort to capture the world and prove her loyalty to CoordinatorVincent Kurita were a failure thanks to the robust efforts of the planetary militia.[62] An assault by the 3rd New Samarkand Regulars was repelled in 3133,[63] but cost the defenders their popular leader when Legate Francis Nguyen was killed.[61] Vega broke down into a series of armed camps headed by various Warlords.[49]

Clan Ghost Bear sent their Omega Galaxy to Vega to help stabilize the world. By 3136, the situation had calmed, and the Ghost Bears were well on their way to re-establishing a functional government. The Draconis Combine sent the 44th Benjamin Regulars to take the world, but the Bears and Vegan defense forces were able to repel the DCMS forces. The Combine then sent the 44th Benjamin and the 5th Sword of Light to take the world. This time they were repelled by the Bears, Vegan defense force, and the 12th Vegan Rangers mercenary unit. The 12th Vegan Rangers later accepted an offer to become a permanent part of the Vegan Protectorate.[49]